It is common to mix gravure and web offset forms in the same issue.
这是常见的组合凹版印刷和轮转的形式相同的问题。
The remaining parts of the issue, as well as a newsstand version that does not have a customized cover, will be printed using National Geographic's usual gravure and web offset service.
其余部分的问题，以及一个没有客制化封面的报摊版本，将会用《国家地理》通常使用的凹版印刷和卷筒纸胶印服务。
The sheet feed press, web offset press, web gravure press and flexographic press are the most widely used in printing newspapers, magazines, books, advertisements and packaging papers.
在印刷包装业对各种印刷设备的需求中，量大面广的印刷设备是单张纸平版印刷机、卷筒纸平版印刷机、卷筒纸凹版印刷机和柔性版印刷机。
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